DSP-13 User Manual
Page 14 of 16
DSP13_MAN_B
Pin Out
There is only one version of the DSP13M. The table below shows the pin out for the detector.
Pin Function
1
Sensor connection
2
Sensor connection
3
Power (12 to 24 volts DC)
4
No connection
5
No connection
6
No connection
7
No connection
8
Detect output (Open Collector)
9
Power (12 to 24 volts DC)
10
Power and logic common
7.
Troubleshooting
No Power LED
Use a meter to measure the voltage applied to the detector. The voltage must be DC and above 8 volts.
If the correct voltage is applied and the power LED is not on, replace the detector.
Power LED Slowly Flashing
This flash rate indicates that the sensors cannot be seen by the master. This will happen if the applied DC
voltage is below about 6.5 volts. If the voltage is above the required 8 volts for normal operation, either the
wiring to the sensor has failed or the sensor itself has failed. Check and tighten all connections and splices in the
sensor wiring path.
Connect a known good sensor to the master. If the slow flashing stops and is replaced with two quick flashes
every two seconds, or just a solid power LED, then the issue is with the sensor or its wiring.
If the correct voltage is applied and the power LED is still flashing, replace the detector.
